[llvm] [CodeGen] Preserved additional analyses in StackSlotColoring pass. (PR #93779)

[Vikash Gupta via llvm-commits]

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@@ -496,8 +506,10 @@ bool StackSlotColoring::RemoveDeadStores(MachineBasicBlock* MBB) {
     ++I;
   }
 
-  for (MachineInstr *MI : toErase)
+  for (MachineInstr *MI : toErase) {
     MI->eraseFromParent();
+    Indexes->removeMachineInstrFromMaps(*MI);
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vg0204 wrote:

It was the main change which helped me allow to achieve solution iin this PR #93668, else corrupted slot index is getting propagated to SILowerSGPRspill pass in the mentioned PR.

https://github.com/llvm/llvm-project/pull/93779